The speed of earth’s rotation about its axis is w0. Its speed is increased to' x times to make the effective acceleration due to gravity equal to zero at the equator. Then x is,

If the density of the earth is doubled, by keeping it’s radius constant, then what will be the acceleration due to gravity ?

The position x of a particle varies with time (t) as x= at^2 - bt^3 . The acceleration at time t of the particle will be equal of zero. When is equal to

If earth suddenly stops rotating about it’s axis what would be the effect on g ? Would this effect be the same at all places- ?

A particle is moving in a circle of radius 1.5m. Its speed is increasing by 180 rev/minute in one minute. What is it's linear acceleration ?

A jeep moving at a speed of 50 km/hr reaches the foot of smooth incline where its engine is switched off. How much distance does the jeep go up the incline before coming to rest ? The inclination of the plane to the horizontal is 45^@ and the acceleration due to gravity at the place is 9.8m/s^2